Other than Bedford himself, notable members included John Montagu, 4th Earl of Sandwich; Granville Leveson-Gower, 2nd Earl Gower; Richard Rigby, who served as principal Commons manager for the group; Thomas Thynne, 3rd Viscount Weymouth; Edward Thurlow; and George Spencer, 4th Duke of Marlborough
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In his article about Bedford for the Oxford Dictionary of National Biography, Martyn Powell contends that accusations of opportunism are unfair, and that flexibility was necessary for a relatively small party like the Bedford Whigs.
The Old Corps Whig Thomas Robinson held that office until late 1755, when the Bedfordite Henry Fox replaced him.